Zac Efron

as Ted Bundy

Lily Collins

as Liz Kendall

Kaya Scodelario

as Carole Anne Boone

Jeffrey Donovan

as Utah Defense Attorney John O'Connell

Angela Sarafyan

as Joanna

Dylan Baker

as Utah Prosecutor David Yocom

Brian Geraghty

as Florida Public Defender Dan Dowd

Terry Kinney

as Detective Mike Fisher